/Engine/Source/Editor/UnrealEd/Classes/CookOnTheSide/CookOnTheFlyServer.h
Clear any cached cooked platform data for a platform and call ClearCachedCookedPlatformData on all UObjects.
void ClearCachedCookedPlatformDataForPlatform ( const [ITargetPlatform](API\Developer\TargetPlatform\Interfaces\ITargetPlatform) * TargetPlatform )